The Liar and His Lover is a Korean drama adaptation of the Japanese manga 'Kanojo Wa Uso Wo Aishisugiteru' by Aoki Kotomi. The manga has a Japanese live action movie adaptation as well. This drama stars Red Velvet's Joy who plays the female lead 'Yoon So Rim'. The Liar and His Lover airs March 20th on Mondays and Tuesdays at 23:00 KST.
The drama is a bittersweet romance story between talented producer Kang Han Kyeol and high school student Yoon So Rim. Han Kyeol a producer at Sole Music agency and produces music for popular band Crude Play of which he was a former bassist for. So Rim is a cheerful aspiring singer in a band made up of her two childhood friends. The two meet and fall in love with each other's singing voices.
- Joy (Park Soo Young) as 'Yoon So Rim' who is an aspiring, happy-go-lucky singer.
- Lee Hyun Woo as 'Kang Han Kyeol' (Producer K) who is a talented and stubborn music producer that puts music above everything else.
- Lee Seo Won as 'Seo Chan Young' who is the talented bassist for 'Crude Play' and replaced Han Kyeol.
- Lee Jung Jin as 'Choi Jin Hyuk' who is the president of 'Sole N Music' agency.
- Hong Seo Young as 'Chae Yoo Na' who is an artist at 'Sole N Music'.
- Choi Min Soo as 'Kang In Woo' who is Han Kyeol's father.
- Sung Joo as 'Yoo Shi Hyun' who is the lead singer of 'Crude Play'.
- Shin Je Min as 'Lee Yoon' who is the guitarist for 'Crude Play'.
- Chan Ki Young as 'Ji In Ho' who is 'Crude Play's drummer.
- Lim Ye Jin as 'Kim Soon Hee' who is So Rim's grandmother.
- Song Kang as 'Baek Jin Woo' who is the guitarist in 'Mush & Co.'..
- Park Jong Hyeok as 'Lee Gyoo Sun' who is the drummer in 'Mush & Co.'.
- Kim In Kwon as 'Teacher Bong' who is So Rim's homeroom teacher.
- Park Ji Young as 'Yoo Hyun Jung'.who is the president of 'Who Music Group'.